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-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c8
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.h47
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl32.c207
3 files changed, 171 insertions, 91 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 03c55b8fa373..498d3e15843b 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -68,7 +68,7 @@
* XFS_IOC_PATH_TO_HANDLE
* returns full handle for a path
*/
-STATIC int
+int
xfs_find_handle(
unsigned int cmd,
xfs_fsop_handlereq_t *hreq)
@@ -245,7 +245,7 @@ xfs_vget_fsop_handlereq(
return 0;
}
-STATIC int
+int
xfs_open_by_handle(
xfs_mount_t *mp,
xfs_fsop_handlereq_t *hreq,
@@ -355,7 +355,7 @@ do_readlink(
}
-STATIC int
+int
xfs_readlink_by_handle(
xfs_mount_t *mp,
xfs_fsop_handlereq_t *hreq,
@@ -651,7 +651,7 @@ xfs_attrmulti_by_handle(
return -error;
}
-STATIC int
+int
xfs_ioc_space(
struct xfs_inode *ip,
struct inode *inode,
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.h b/fs/xfs/linux-2.6/xfs_ioctl.h
new file mode 100644
index 000000000000..2df849f49a5e
--- /dev/null
+++ b/fs/xfs/linux-2.6/xfs_ioctl.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2008 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __XFS_IOCTL_H__
+#define __XFS_IOCTL_H__
+
+extern int
+xfs_ioc_space(
+ struct xfs_inode *ip,
+ struct inode *inode,
+ struct file *filp,
+ int ioflags,
+ unsigned int cmd,
+ xfs_flock64_t *bf);
+
+extern int
+xfs_find_handle(
+ unsigned int cmd,
+ xfs_fsop_handlereq_t *hreq);
+
+extern int
+xfs_open_by_handle(
+ xfs_mount_t *mp,
+ xfs_fsop_handlereq_t *hreq,
+ struct file *parfilp,
+ struct inode *parinode);
+
+extern int
+xfs_readlink_by_handle(
+ xfs_mount_t *mp,
+ xfs_fsop_handlereq_t *hreq,
+ struct inode *parinode);
+#endif
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 620bb2d6d26c..35edc054fb99 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -43,55 +43,62 @@
#include "xfs_error.h"
#include "xfs_dfrag.h"
#include "xfs_vnodeops.h"
+#include "xfs_fsops.h"
+#include "xfs_ioctl.h"
#include "xfs_ioctl32.h"
#define _NATIVE_IOC(cmd, type) \
_IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
#ifdef BROKEN_X86_ALIGNMENT
-STATIC unsigned long
-xfs_ioctl32_flock(
- unsigned long arg)
+STATIC int
+xfs_compat_flock64_copyin(
+ xfs_flock64_t *bf,
+ compat_xfs_flock64_t __user *arg32)
{
- compat_xfs_flock64_t __user *p32 = (void __user *)arg;
- xfs_flock64_t __user *p = compat_alloc_user_space(sizeof(*p));
-
- if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) ||
- copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) ||
- copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) ||
- copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
- copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
- copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
- copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
- return -EFAULT;
-
- return (unsigned long)p;
+ if (get_user(bf->l_type, &arg32->l_type) ||
+ get_user(bf->l_whence, &arg32->l_whence) ||
+ get_user(bf->l_start, &arg32->l_start) ||
+ get_user(bf->l_len, &arg32->l_len) ||
+ get_user(bf->l_sysid, &arg32->l_sysid) ||
+ get_user(bf->l_pid, &arg32->l_pid) ||
+ copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
+ return -XFS_ERROR(EFAULT);
+ return 0;
}
-STATIC unsigned long xfs_ioctl32_geom_v1(unsigned long arg)
+STATIC int
+xfs_compat_ioc_fsgeometry_v1(
+ struct xfs_mount *mp,
+ compat_xfs_fsop_geom_v1_t __user *arg32)
{
- compat_xfs_fsop_geom_v1_t __user *p32 = (void __user *)arg;
- xfs_fsop_geom_v1_t __user *p = compat_alloc_user_space(sizeof(*p));
+ xfs_fsop_geom_t fsgeo;
+ int error;
- if (copy_in_user(p, p32, sizeof(*p32)))
- return -EFAULT;
- return (unsigned long)p;
+ error = xfs_fs_geometry(mp, &fsgeo, 3);
+ if (error)
+ return -error;
+ /* The 32-bit variant simply has some padding at the end */
+ if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
+ return -XFS_ERROR(EFAULT);
+ return 0;
}
-STATIC int xfs_inumbers_fmt_compat(
- void __user *ubuffer,
- const xfs_inogrp_t *buffer,
- long count,
- long *written)
+STATIC int
+xfs_inumbers_fmt_compat(
+ void __user *ubuffer,
+ const xfs_inogrp_t *buffer,
+ long count,
+ long *written)
{
- compat_xfs_inogrp_t __user *p32 = ubuffer;
- long i;
+ compat_xfs_inogrp_t __user *p32 = ubuffer;
+ long i;
for (i = 0; i < count; i++) {
if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
- return -EFAULT;
+ return -XFS_ERROR(EFAULT);
}
*written = count * sizeof(*p32);
return 0;
@@ -103,24 +110,26 @@ STATIC int xfs_inumbers_fmt_compat(
/* XFS_IOC_FSBULKSTAT and friends */
-STATIC int xfs_bstime_store_compat(
- compat_xfs_bstime_t __user *p32,
- const xfs_bstime_t *p)
+STATIC int
+xfs_bstime_store_compat(
+ compat_xfs_bstime_t __user *p32,
+ const xfs_bstime_t *p)
{
- __s32 sec32;
+ __s32 sec32;
sec32 = p->tv_sec;
if (put_user(sec32, &p32->tv_sec) ||
put_user(p->tv_nsec, &p32->tv_nsec))
- return -EFAULT;
+ return -XFS_ERROR(EFAULT);
return 0;
}
-STATIC int xfs_bulkstat_one_fmt_compat(
+STATIC int
+xfs_bulkstat_one_fmt_compat(
void __user *ubuffer,
const xfs_bstat_t *buffer)
{
- compat_xfs_bstat_t __user *p32 = ubuffer;
+ compat_xfs_bstat_t __user *p32 = ubuffer;
if (put_user(buffer->bs_ino, &p32->bs_ino) ||
put_user(buffer->bs_mode, &p32->bs_mode) ||
@@ -142,7 +151,7 @@ STATIC int xfs_bulkstat_one_fmt_compat(
put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
put_user(buffer->bs_aextents, &p32->bs_aextents))
- return -EFAULT;
+ return -XFS_ERROR(EFAULT);
return sizeof(*p32);
}
@@ -165,20 +174,20 @@ xfs_ioc_bulkstat_compat(
/* should be called again (unused here, but used in dmapi) */
if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
+ return -XFS_ERROR(EPERM);
if (XFS_FORCED_SHUTDOWN(mp))
return -XFS_ERROR(EIO);
if (get_user(addr, &p32->lastip))
- return -EFAULT;
+ return -XFS_ERROR(EFAULT);
bulkreq.lastip = compat_ptr(addr);
if (get_user(bulkreq.icount, &p32->icount) ||
get_user(addr, &p32->ubuffer))
- return -EFAULT;
+ return -XFS_ERROR(EFAULT);
bulkreq.ubuffer = compat_ptr(addr);
if (get_user(addr, &p32->ocount))
- return -EFAULT;
+ return -XFS_ERROR(EFAULT);
bulkreq.ocount = compat_ptr(addr);
if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
@@ -216,38 +225,40 @@ xfs_ioc_bulkstat_compat(
return 0;
}
-STATIC unsigned long xfs_ioctl32_fshandle(unsigned long arg)
+STATIC int
+xfs_compat_handlereq_copyin(
+ xfs_fsop_handlereq_t *hreq,
+ compat_xfs_fsop_handlereq_t __user *arg32)
{
- compat_xfs_fsop_handlereq_t __user *p32 = (void __user *)arg;
- xfs_fsop_handlereq_t __user *p = compat_alloc_user_space(sizeof(*p));
- u32 addr;
-
- if (copy_in_user(&p->fd, &p32->fd, sizeof(__u32)) ||
- get_user(addr, &p32->path) ||
- put_user(compat_ptr(addr), &p->path) ||
- copy_in_user(&p->oflags, &p32->oflags, sizeof(__u32)) ||
- get_user(addr, &p32->ihandle) ||
- put_user(compat_ptr(addr), &p->ihandle) ||
- copy_in_user(&p->ihandlen, &p32->ihandlen, sizeof(__u32)) ||
- get_user(addr, &p32->ohandle) ||
- put_user(compat_ptr(addr), &p->ohandle) ||
- get_user(addr, &p32->ohandlen) ||
- put_user(compat_ptr(addr), &p->ohandlen))
- return -EFAULT;
-
- return (unsigned long)p;
+ compat_xfs_fsop_handlereq_t hreq32;
+
+ if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
+ return -XFS_ERROR(EFAULT);
+
+ hreq->fd = hreq32.fd;
+ hreq->path = compat_ptr(hreq32.path);
+ hreq->oflags = hreq32.oflags;
+ hreq->ihandle = compat_ptr(hreq32.ihandle);
+ hreq->ihandlen = hreq32.ihandlen;
+ hreq->ohandle = compat_ptr(hreq32.ohandle);
+ hreq->ohandlen = compat_ptr(hreq32.ohandlen);
+
+ return 0;
}
STATIC long
xfs_compat_ioctl(
- int mode,
- struct file *file,
+ xfs_inode_t *ip,
+ struct file *filp,
+ int ioflags,
unsigned cmd,
- unsigned long arg)
+ void __user *arg)
{
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = filp->f_path.dentry->d_inode;
+ xfs_mount_t *mp = ip->i_mount;
int error;
+ xfs_itrace_entry(XFS_I(inode));
switch (cmd) {
case XFS_IOC_DIOINFO:
case XFS_IOC_FSGEOMETRY:
@@ -290,14 +301,16 @@ xfs_compat_ioctl(
case XFS_IOC_RESVSP_32:
case XFS_IOC_UNRESVSP_32:
case XFS_IOC_RESVSP64_32:
- case XFS_IOC_UNRESVSP64_32:
- arg = xfs_ioctl32_flock(arg);
+ case XFS_IOC_UNRESVSP64_32: {
+ struct xfs_flock64 bf;
+
+ if (xfs_compat_flock64_copyin(&bf, arg))
+ return -XFS_ERROR(EFAULT);
cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
- break;
+ return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
+ }
case XFS_IOC_FSGEOMETRY_V1_32:
- arg = xfs_ioctl32_geom_v1(arg);
- cmd = _NATIVE_IOC(cmd, struct xfs_fsop_geom_v1);
- break;
+ return xfs_compat_ioc_fsgeometry_v1(mp, arg);
#else /* These are handled fine if no alignment issues */
case XFS_IOC_ALLOCSP:
case XFS_IOC_FREESP:
@@ -323,35 +336,55 @@ xfs_compat_ioctl(
cmd, (void __user*)arg);
case XFS_IOC_FD_TO_HANDLE_32:
case XFS_IOC_PATH_TO_HANDLE_32:
- case XFS_IOC_PATH_TO_FSHANDLE_32:
- case XFS_IOC_OPEN_BY_HANDLE_32:
- case XFS_IOC_READLINK_BY_HANDLE_32:
- arg = xfs_ioctl32_fshandle(arg);
+ case XFS_IOC_PATH_TO_FSHANDLE_32: {
+ struct xfs_fsop_handlereq hreq;
+
+ if (xfs_compat_handlereq_copyin(&hreq, arg))
+ return -XFS_ERROR(EFAULT);
cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
- break;
+ return xfs_find_handle(cmd, &hreq);
+ }
+ case XFS_IOC_OPEN_BY_HANDLE_32: {
+ struct xfs_fsop_handlereq hreq;
+
+ if (xfs_compat_handlereq_copyin(&hreq, arg))
+ return -XFS_ERROR(EFAULT);
+ return xfs_open_by_handle(mp, &hreq, filp, inode);
+ }
+ case XFS_IOC_READLINK_BY_HANDLE_32: {
+ struct xfs_fsop_handlereq hreq;
+
+ if (xfs_compat_handlereq_copyin(&hreq, arg))
+ return -XFS_ERROR(EFAULT);
+ return xfs_readlink_by_handle(mp, &hreq, inode);
+ }
default:
- return -ENOIOCTLCMD;
+ return -XFS_ERROR(ENOIOCTLCMD);
}
- error = xfs_ioctl(XFS_I(inode), file, mode, cmd, (void __user *)arg);
- xfs_iflags_set(XFS_I(inode), XFS_IMODIFIED);
+ error = xfs_ioctl(ip, filp, ioflags, cmd, arg);
return error;
}
long
xfs_file_compat_ioctl(
- struct file *file,
- unsigned cmd,
- unsigned long arg)
+ struct file *filp,
+ unsigned int cmd,
+ unsigned long p)
{
- return xfs_compat_ioctl(0, file, cmd, arg);
+ struct inode *inode = filp->f_path.dentry->d_inode;
+
+ return xfs_compat_ioctl(XFS_I(inode), filp, 0, cmd, (void __user *)p);
}
long
xfs_file_compat_invis_ioctl(
- struct file *file,
- unsigned cmd,
- unsigned long arg)
+ struct file *filp,
+ unsigned int cmd,
+ unsigned long p)
{
- return xfs_compat_ioctl(IO_INVIS, file, cmd, arg);
+ struct inode *inode = filp->f_path.dentry->d_inode;
+
+ return xfs_compat_ioctl(XFS_I(inode), filp, IO_INVIS, cmd,
+ (void __user *)p);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.